Automatic music-tbackeb



C. F. & F. G REEPS. AUTOMATIO MUSIC TRACKER. APPLICATION mm MAR. 22. 1912.

Patented Aug. 15, 19%

'. E AND FIRED EEEPS, 6F (M111 PARK, I'Lbififi o all 1072mm may mm 3e it hnmvn "J\ and Fem States 01? her 5; by an me; em 1..

"V yeiefiae etc mtiens @1151 her her.

ids e11? inven- 25 is a 1 uni eieva" tracker he 1 meche'n view of a 1m is a perspeuin paid tracker be As thus ihs, prises jhe usual up spools A and B my? paper (J ce N fL'OZH the 170.

V the mi t0 play the music, and. is then XLG'WOU upon ishe m5 .3, in the usual m" any snitemie manner. The nmsie sheet h'eveis eemse hhe fame er cute:

edge of tr Ii? eh leather is With the "1811M e-mm ge e111 ihese joerfo e met "fie metre the e time e in iE'u were) m H" usual ingmechzu' b F n eyehjy when een'tmets,

epeeifieaizien of Letters Eaten't.

erewde Serial He. $85,523

has twe 1. 1211121 z'ews of 21112031 smeher heies 5'' am? me hdes al being; cennee with the plpe 3 .ieech'ng t0 the pneumatic e moi A.

0931B. etec i by a pipe (5- 11; he seen ehe when these e-refines are treveihx net ehnem W the OPQIHZIgS at, shown mole by in. l rig. 2.

The e'imretien as fehews: WYhfle the music. sheet is ir'evehng in ahn'ement with the iireeker her epenings, "he mechanism T emaine in henna eenditieng Suppose how ever, that the sheet ehiffis shghfly to the left. In seeh ease the note perfozretiens a pass over heies 0 5 thereby efiewing air to pass into the pipe (5 end into the pneuh'mfiie e This causes the Kati-er to pm and the pneunmtie 1510 contract, thus causing the coupling E to pull the 'izmcher bar to the left until the e iinement is xestorefi, H ihe sheet shifts he @he righfi, then the air passes ough the perfol'ations-s c and into ehe holes thereby permitting air to enter the pneumzuie 6 my Way of the pipe (Z This causes 'he eneume'tie 6 to expzm. e136: the pneute' centmefi, ami as e result the her is pushed to he rigghi until the element is restored. Thus the note perf0- rations in "she music sheet constitute a pert of the means for euisematieehy preserving the alinement heeween -alhe music sheet and the f Ey means e-i the serew coupiing E the h: eker he]? D can be manually ussed. enci- 115% until the openings f are in line with the nose perforations in the sheet. This ehnement for any eermin sheet is then auto me i'icz 11y preserved in the manner described.

An impertant feature of our invention is he K-heile s formed by the {3W0 pnenmatics 1 and Z having their movable Wells hinged m; a; COYHIHODiDOiIlt and connecfied. by the strap or bracket 0 to make them work alternately. It is also an in'i1' ortant consideration that the tracker bar operated by said bellows has the holes (Z and (Z located out of line with the openings (I of said bar,

1 whereby only aslight shift of the sheet in either direction is sufficient to produce the desired result. In addition it will be seen that each and every note perforation is operative to control the automatic tracking mechanism. Those portions of the sheet which are least subject to wear are employed for controlling the said mechanism.

It will be seen that the holes (Z are all lefts-that is to say. that each one cooperates with the left hand edge of all of the note perfo 'ations in a certain row. so that each oneof theseholes is uncovered by a slight shifting of the music sheet to the left. Similarly, all of the holes (I are rights that is to say. each hole is controlled by the right hand edge of each note perforation in a certain row. whereby each of these holes is uncovered by a slight displacement of the music sheet to the right. The holes thus termed lefts are all interconnected within the body of the tracker bar. in the manner shown. and the holes termed rights are all interconnected within the body of the tracker bar. Thus there are two holes opposite aich space between the openings (7. one hole being a right. and the. other hole being a left. lVith this arrangement ach row of note perforations is forced to travel without room to spare. so to speak. between the two holes. a right and a left. and consequently each note perforation employs both edges thereof,that is to say. the right and left longitudinal edges. for controlling the means by which the alinement is automatically preserved. By arranging the holes in such manner that the so-called rights are all in the one row. and the so-called lefts all in another row. it is possible to greatly sim plify the arrangement and to render the mechanism for preserving the alinement very sensitiv and responsive.

What we claim as our invention is:

l. A. player mechanism for musical instruments. comprising a music sheet providcd with perforations disposed along par allcl lines. a tracker bar provided with openings cooperating vvith the perforations of said sheet. and means controlled by the note perforations df said sheet for automatically preserving alii'icnicnt thereof with the openings of said tracker bar. having two rows of holes extending along the trackcr bar. the holes of each row. being connccn-d together. and the holes of one row being sta 'crcd relative to tho e ol the olhcr row. each noteperforation passing l)(lv\'(tll a holc of one row and a hole of the other row arch pair of holes thus formed being individual lo a in gle linc of note pcrl'oraii ns. lhc holes of one row comnninicating with ea h other and the holesot the other row communical ing with each other. internally of said tracker bar.

A player niechanisn'i for musical instruments. coi'nprising a traveling music sheet provided with perforations disposed along parallel lines. a tracker bar provided with openings cooperating with the perl'oa'ations of said sheet. and means controlled by the note perforations of said sheet. for automatically preserving alincmcnt thereof with the openings of said tracker bar. operated only by air passing through the perforations of the sheet. including holes in said tracker bar. some of which holes are brought within the paths of travel of said note perforations by the lateral shift of the sheet in either direction. there being a right and left hole for each of said perforations. said mechanisn'i being controllable by the opposite edges of each note perforation.

A player mechanism for musical instruments. comprising a traveling music sheet provided with perforations disposed along parallel lines. a tracker bar provided with openings cooperating with the pcrforations of said sheet. and n ans controlled by the note perforations of said sheet for automatically preserving alinement thereof with the openings of said tracker bar. having holes disposed in the face of the tracker bar and in staggered relation to the said openings. the said holes being divided into two groups. and the members of each group being interconnech-il within the body of said tracker bar. together with a single connection to said tracker bar for each group.

-l. player mechanism for musical instruments. comprising a traveling music sheet provided with perforations disposed along parallel lines. a tracker bar provided with openings cia'iperating with the perforations of said sheet. and means controlled by the note perforations of said sheet. for automatically preserving alinem nt thcrcot with the openings of said tracker ar. including two rows of holes extending along the tracker bar. the holcs of each row being connected together. and the holcs of one row being staggered relative to those of the other row. *ach note perforation passing between a hole of one row and a hole of the othenrow. cach pair of holes thus formed being individual to a single line of note perforation. the tracker bar having two sepa rate longitudinal passages. the holes of one row communicating with one passage. and the holes of the other row communicatini! with the other passage. and said holes being disposed in staggered relation to each other. substantially a and for the purpose set forth.

7-. player mechanism for musical intruments. omprising a traveling music sheet provided with perforations disposed along parallel lines, a tracker bar provided with openings cooperating with the perforations of said sheet, and means controlled 1 I the note perforations of said sheet, for ornatically preserving alinement thereof with the openings of said tracker bar, in eluding holes disposed in the face of the tracker bar and in s aggered relation to the said openings, the said holes being divided into two groups, and the members of each being interconnected within the body lid tracker bar, together with a single etionto saic. tracker bar for each 15. and said holes being disposed in stagrelation to each other, substantially as and tor the purpose set forth.

6, A player mechanism for musiczl instruments, comprising a traveling music sheet provided with perforations disposed along parallel lines, a tracker bar provided with openings coiiperating with the perforations of said sheet, and means controlled by both side edges of each and every note perforation of said sheet, hylateral shift of the sheet in opposite directions, for automatically preserving alinement thereof with the openings of said tracker bar, said means having two rows of holes in said tracker bar, the holes of one row being disposed in staggered relation to the holes of the other row, and the holes in the same row being inter connected within the tracker bar.

7.. A player mechanism for musical instruments, comprising a traveling music sheet provided with perforations disposed. along; parallel lines, a tracker bar provided with openings cooperating with the perforations of said sheet, and means controlled by the note perforations of said sheet, for automatically preserving alincment thereof with the openings of said tracker bar, including two rows of holes extending along the tracker bar, he holes of each row being connected together, and the holes of one row being staggered relative to those of the other row, each note perforation passing between a hole of one row and a hole of the other row, each pair of holes thus formed being individual to a single line of note perforations, the tracker bar having two separate longitudinal passages, the holes of one row communicating with one passage, and the holes of the other row coi'nnmnicating with the other passage, said means also comprising a single adjustable connection for causing relative shift of said sheet and tracker bar, and a pair ofbellows having movable walls rigidly connected together to operate said connection in opposite directions.

8. A player mechanism for musical instruments, comprising a traveling music sheet provided with perforations disposed along parallel lines, a tracker bar provided ings, the said holes being-divided into twov groups, and the members of eachgroup being interconnected. within the body of said tracker bar, together with a single connection to said tracker bar for each group, said means also comprising a single adjustable element for causing relative shift 'of'said sheet and tracker bar, and a pair of bellows having movable walls rigidly connected together to operate said element in opposite directions.

9. A player mechanism for musical instruments, comprising a traveling music sheet provided with perforations disposed along parallel lines, a tracker bar provided with openings cooperating with the perforations of said sheet, and means controlled by both side edges of a note perforation of said sheet, by lateral shift of the sheet in either direction, for automaticallypreserving alinement thereof with the openings of said tracker bar, said means having a pair of holes in said tracker bar, one at each side of said perforation, disposed one ahead of the other in the direction of movement of said sheet.

10. The combination of a tracker having the usual row of apertures and also having two supplemental rows of apertures in the rear of the usual row of apertures, said supplemental apertures being located on opposite sides of the bridge spaces of the tracker, and means for shifting the music sheet relatively to the'tracker, said means being actuated through the medium of said supple mental apertures.

11. The combination of a tracker having the usual row of apertures and also having two supplemental rows of apertures in the rear of the usual row of apertures, said supplemental apertures being located on opposite sides of the bridge spaces of the tracker,- and means for bringing about a relatlve' being operable through said supplemental apertures 13. The combination of a tracker having two rows of apertures, whereof the apertures in the dilierent rows are out of alinemcnt crosswise of the tracker, and mechanism for producing a relative shifting movement between the tracker and music sheet, said mechanism being operable to produce a shifting movement in one direction through the medium of the apertures of one row and in the opposite direction through the apertures in the other row.

ll. The combination of a tracker havin two sets of apertures, whereof the apertures in the two sets are out of alinement crosswise ot the tracker, a double bellows, pneumatic connections between said apertures and said bellows, one set of apertures being connected with one part of the bellows and the o her set to the other part, and Inecha- S. L. GLovEn, E. H. CLEGG. 

